export function successfn({code=200,msg="接口调用成功",data=null}){
    return{ code,  msg,  data }
}
export function abnormalfn({code=201,msg="接口异常",data=null}){
    return{ code,  msg,  data }
}
export function expfn({code=202,msg="token失效，请重新登录",data=null}){
    return{ code,  msg,  data }
}